EAW KF550C Specifications

The Forsythe Series KF550 is a high defini-
tion sound reinforcement loudspeaker system
designed for high output sound reinforcement
applications. Its "One Box" design permits ease
transport and idealized driver alignment and
subassembly integration resulting in maximally
flat frequency and phase response. The use of
complex subassemblies provides full horn
loading over its entire operating range for
precise control of coverage and directivity.
The KF550's advanced technology is e
direct result of EAW's unmatched expertise in
"One Box" system design and construction;
after all, EN invented the "One Box" horn
loaded system. By working closely with the
leading sound rental companies throughout
the world, we designed the KF550 for the way
you use professional loudspeakers. You'll find
that its features will make your operation
more efficient and cost effective.
We invite you to compare other systems
and see the performance and features that
set the KF550 apart from all other high
output loudspeaker systems.
We're confident you'll choose the
KF550 "One Box System That Defies
Competition".
Advanced Designed Horn Subassemblies
The Forsythe designed mid and bass horn subassemblies
utilized in the KF550 are the most sophisticated on the
market. They were developed from advanced computer
optimized mathematical models and then are
precisely created with a proprietary polyurethane reinorced
wood construction technique. The final designs are tested for
both acoustical and mechanical performance and any
necessary upgrades are made to the design. Unlike competitive
systems that, at best, approximate a true horn., the KF550's true
mathematical correct horns provide exceptionally smooth air
loaded impedance characteristics. The finished product results
in fidelity that is not only significantly better than any other horn
system but surpasses most vented systems, and unprecedented
output capabilities.
Industry Standard Mid Range Definition
The mid range subassembly in the KF550 is adapted from
EAW's legendary MR-102, the world's most popular horn
loaded mid-bass system. EAW has produced thousands sands
of these mid-bass horns, and they are in daily use in some of
the most demanding professional applications from the
Palladium in New York to the Sun PIaza in Tokyo. The MR102
ior performance. This device eliminates the power response
irregularities that plague all competitive midbass horns by
maintaining proper loading from the mouth right down into
the throat. The result is smooth frequency response on and
off axis, so the sound character of the KF550 is identical
anywhere in its coverage area.
Constant Coverage High Frequency
Subassembly
The KF550C's high frequency subassembly is the new RCF
H9040 horn which offers constant coverage over its entire
operating band` The horn flare configuration has been
maximized to achieve constant coverage without the increased
distortion of competitive designs. To ensure high mechanical
strength and total freedom from resonances, the horn is
constructed of high pressure die cast aluminum alloy with a
minimum thickness of 4 mm.
The H9040's throat accepts all standard two-inch exit
drivers. The TAD 4001 is recommended for use when
extended high frequency performance is required. The JBL
2445 can also be used for less demanding applications.
Efficient Interface to Amplifiers West Signals
The KF550C includes as standard a unique input
arrangement, including a hinged door that reveals a cable
transport compartment with a recessed input termination
panel and wiring barrier strip. The input termination panel
includes two parallel EP Series 8 pin connectors and banana
type test points for each driver in the system. The test points
enable easy testing of individual drivers without the need for
special cabling.
Reliability: The Industry Standard
Constructed from imported 18 ply to the inch cross
grain laminated hardwood with all horn flare reinforced with
high density polyurethane foam, the KF550 utilizes the
technology that has made EAW the world's leading supplier
of high output systems for portable applications. Other
standard KF550 features include black catalyzed polyurethane
chemical coating finish, recessed rattle free metal handles,
slant back with heavy duty castors and vinyl coated
perforated steel speaker grills.
The KF550: Reliability, Performance, Quality, In
Harmony.